<!DOCTYPE html>
<html lang="en"
      xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Asuka</title>
    <script language="JavaScript">
        function fSubmit(obj) {
            obj.submit();
        }
    </script>
</head>
<body>
<form method="post" name="form1" th:action="@{/logout}">
    <img onclick="javascript:fSubmit(document.form1)" th:src="@{/images/Asuka.jpg}" />
</form>
</body>
</html>